Today's woes:
Windows 10: restart after Windows update last night:
Starts up then shuts down, screen remaining blank. 3 times!
Finally starts, about 5 minutes to login screen.
Two minutes to log in
Lost time 10 minutes
Dropped strong wireless connection in client's premises.
Two remote sessions to Linux server dropped.
Lost time 5 minutes
Various apps not responding
Lost time 5 minutes.
"How do you want to open this?" -- "this" not named
"This app is preventing shutdown" -- which app?
Woke up from hibernation: Immediate reboot, followed by configuring more updates. (Lost) Time from waking up to usable: 15 minutes
Found WiFi hotspot turned on - how did that happen?
Cannot switch off "Highlight-follows-mouse" can lead to wrong action by Enter key.
Very slow to react to keystrokes and mouse clicks -- sometimes many seconds before anything changes at all, encouraging duplicate actions, some times dangerous.
Screen blanks before shutdown is complete.
Windows 10 GUI hides keyboard shortcuts previously hinted at from menus.